Consider the following hypothesis test: Ho: P ? 0.8 Ha: P > 0.8 A sample of 400 provided a sample proportion of 0.853
a. Determine the standard error of the proportion.
b. Compute the value of the test statistic.
c. Determine the p-value; and at 95% confidence, test the above hypotheses.
a. 0.02
b. Z = 2.65
c. p-value = 0.004; reject H0
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